01 - Preheat the oven to 375°F.
02 - Heat olive oil in a large, oven-safe skillet or Dutch oven over medium heat. Add diced onion and sauté for 3 minutes until softened. Stir in minced garlic and cook for 1 minute until fragrant.
03 - Add rinsed farro to the skillet and toast, stirring frequently, for 3 to 4 minutes until lightly golden and aromatic.
04 - Pour in vegetable broth, add kosher salt and black pepper, then stir to combine. Bring to a simmer.
05 - Cover the skillet with a lid or foil and transfer to the preheated oven. Bake for 25 to 30 minutes, or until farro is tender and liquid is absorbed.
06 - Remove from oven and fluff farro with a fork. If desired, stir in fresh parsley, lemon juice, and Parmesan cheese. Serve warm.